ppco on "[Plugin: WP e-Commerce Grid View] How to get the wp e-commerce Grid View lite plugin Responsive, twenty twelve"

I am not using twenty twelve but have an issue with the colors of the e-commerce grid lite. I do not want the bright blue "add ot cart" buttons or title text. I want to change these colors. I cannot find it anywhere in the plugin folder. I tried to change the "add to cart" button by uploading a replacement, but this did not take (in c-panel)
Help!
Thanks.
ppco